Before I go ahead and install the M USS system, I want to know if I will still qualify for an autox category as I have never done this before and want to try it. I have already changed the shocks and springs so I have done some suspension modifications. Is anyone familar with the rules?

 

lowering springs will automatically put you beyond stock class... whether you are in SS, SP or SM will depend entirely on your other mods... (if you have pulley, then you are in SP)

 

Do you mean the Under Strut System? UCC?

 

Yea, thats what I mean!

 

http://www.scca.org/_filelibrary/Fil...solo_rules.pdf

If the USS is a "subframe brace", it may not be legal for SP or even SM. If it’s considered anything else, who knows? With autocross rules, if something is not explicitly ALLOWED, it's disallowed by default. I recommend you contact your local event organizers and get their take on this. I’m curious as to the legality of an USS, I may run SM next year and I’d love to add a USS to my car.

Also, underdrive pulleys are not allowed in Street Prepared – they’ll bump you into Street Modified. However, since the JCW package is allowed in Street Prepared (and Street Touring X), if you were to install the full JCW package, that would be legal.